Machine for applying end closures to paper vessels.



L. NORMAN & E. 0. BATES.

MACHINE FOR APPLYING END GLOSURBS T0 PAPER VESSBLS.

APPLICATION FILED MAY 9, 1910.

1,053,314. Patented Feb. 18,1913.

2 SHEETSSHEET 1 .L-. NORMAN &, E. .0. BATES. MACHINE FOR APPLYINGBND GLOSURES T0 PAPER VESSEL S. Y

I APPLICATION FILED MAY 9t 1910. i 1. 1,053,314, Patented Feb. 18, 1913.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

LIONEL NORMAN AND EDWARD C. BATES, 0F BOSTON, MASSACHUSETTS, ASSIGNORS, I BY MESNE ASSIGNMENTS, TO PURE FOOD PACKAGE COMPANY, OF BOSTON, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS.

MACHINE FOR APPLYING ENFCEOSURES TO PAPER VESSELS.

Specification of Letters latent.

Patented Feb. 18, 1913.

Application filed May 9, 1910. Serial No. 560,370.

To all whom it may concern:

Be it known that W6, L\IONEL NORMAN and EDWARD CARRINGTON Bn'rns, citizens of the United States, residing at Boston, in the county of Suffolk and State. of Massachusetts, have invented certain new and useful Improvements in Machines for Applying End Closures to Paper Vessels; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and'use the same.

The principal object of the present invention is to provide a machine by which an end closing cap may be forced into'the interior of the vessel for'a short distance and by which the projecting edge of the closing cap may be folded over upon the outside of the vessel.

Another object of the invention is to provide improved means for folding over the projecting edge of an end closing cap upon the outside ofa vessel.

With the above objects in view the present invention contemplates the provision in a machine for applying end closures ofa suitable support for the vessel, a cap punch 'arrangedto force an end closing cap into the interior of the vessel and a sealing punch arranged to fold over the projecting edge of the cap upon the outside of the vessel. Broadly considered, the two punches may be constructed and arranged in any suitable manner. -To provide a simple andcompact construction, however, and to permit the entire operation of closingthe end of the vessel to be performed quickly without excessive relative movement of the two punches and vessel, the sealing punch is preferably mounted concentric with the 'cappin punch. This construction has the further advantage that the punches can be so arranged that the sealing punch operates while the capping punch is projecting into the vessel so that the two punches cooperate to press the closing cap snugly against both the inner and outer surfaces of the vessel. With this construction also thecenter portion of the cap is held in position during the operation of the sealing punch.

In accordance with another feature of the present invention a rotary, as well as a; longitudinal movement, is imparted to the punch 1 is provided with a number sealing punch. By imparting a rotary movement to the sealing punch the cafp is the more effectively applied to the outside 0 vessel and all wrinkles which maybe formed in the cap are smoothed down. considered, this featureof the invention is not limited to a construction in which a capping punch is used which forces the'cap into the interior of the vessel.

The present invention will be clearly understood from an inspection of the'accompan'ying drawings in which- Figure 1 is' a view in side elevation'of a Broadly.

machine embodying the same-in the pre--- ferred form. Fig. 2 is a; viewin front elevation of the machine illustrated in Fi 1.

Fig. 3 is a fragmentary sectional view 0 the capping and sealing punches and the holder for the vessel, a vessel being shown in the holderwith' a closing cap .placed thereon in position to be operated upon by the punches. Fig. 4 is a view similar to Fig. 3 showing the position of the parts after the closing cap has been forced into the interior of the vessel by the capping punch and Fig. 5 .is a similar view illustrating the position of the parts after the sealing punch is operated.

The capping punch of the machine is indicated at 1 and is provided with a cylindrical lower end. of a size to fit snugly within the endof the vessel to which the end closure is to be applied.

Y The sealing punch is indicated at 2 and consists of a sleeve mounted upon the punch 1 and provided at its lower end with a recess 3 to-fit snugly on the outside of the vessel. The sealing punch is mounted upon the capping punch so as to move therewith toward and from the vessel and so as to be capable of an independent longitudinal and rotary movement. To this end the capping of radially extending pins 4 which pass through slots 5 so shaped that a longitudinal movement is imparted to the sealing punch when it is rotated on the capping punch. To enable the sealing punch to be operated conveniently itis provided with a laterally projecting handle 6. Y

The capping punch 1 is secured to the cross-head 7 mounted to reciprocate in the overhanging head of the machine and con.- nected to an actuating tread-1e 8 by a piyoted lever B, and link 10.

' mounted upon the base of the machine. To

This holder consists of a block provided with a suitably shaped opening to receive and support the vessel, the block being enable the end closin cap to be readily placed in correct osi'tion to be acted upon by the cap and sea ing unches, a semicircular gage 12 is provided secured to the rear side of the holder 11. I

The operation of the cap ing and sealing punches will be clearly un erstood from an inspection of Figs. 3, 4 and 5. The end closing ca 13 is first laced in position, as'indicate in Fig. 3.

, his cap preferably consists ,of'a central disk of card-board of the desired thickness which fits inside of the vessel and a thin sheet of flexible material, the edge of which projects beyond the wall of the vessel. The under surface of this flex1- ble material is preferably provided With adhesive. The cap 13 being'in position on the vessel, the treadle 8 is operated to depress the capping and sealing punches tothe position illustrated in Fig. 4. The capping punch forces the cap into the interior of the vessel for a short distance, the projecting edge of the cap drawing underneath the lower edge of the sealin punch and being held in a substantially orizontal position thereby. The sealing punch is now rotated by means of the handle 6 and is caused to fold over the projectin edge of the cap upon the outside of the vess as indicated in Fig. 5, the rotary movement of the punch smoothmg out the wrinkles. When the sealing punch is in its lowest position, as indicated in Flg. 5, the layers of the cap 13 are pressed tightly against the inner and outer walls of the vessel so that atight closure of the vessel; or sealing of the vessel, is secured.

The nature and scope of the present ins vent1on having been indicated and a machine embodying the several features of the invention in their preferred 'form having been specifically described, what is claimed 1s:-

1. A machine for applying end closures to paper vessels, having, in combination, asupport for the vessel, a capping punch to force a closing cap into the interior of the vessel, a seal ng punch, and means for actuating the seallng punch after the cap has been forced into the vessel to engage the edge of the cap pro ecting outwardly over the edge of the vessel and fold said projecting edge downwardly upon the outside of the vessel.-

2. A machine for applying end closures to I paper vessels, having, in combination, a support for-thevessel, a capping punch to force a closingcap into the interior of the vessel, a sealing punch mounted concentric with the capping punch, and for'moving'the.

sealing punch longitudinally after the cap has been forced into the vessel to engage the edge of the cap projecting outwardly over the edge of the vessel and fold said projecting edge downwardly upon the outside of the vessel.

3. A machine for applying end closures to paper vessels, having, in combination, a support for the vessel, a capping punch to force a closing cap into the interior of the vessel and a sealing punch longitudinally movable and rotatably constructed to engage the edge of the cap projecting outwardly over the end of the vessel and fold said projecting edge downwardly upon, the outside of the vessel.

4. A machine for applying end closures to paper vessels, having, in combination, a support for the vessel, a capping punch to force a closing cap into the interior of the vessel, a sealing punch mounted concentric with the capping punch and movable longitudinally with relation to the capping punch and rotatably constructed to engage the edge of the cap projecting outwardly over the end of the vessel and fold said projecting edge downwardly upon the outside of the vessel.

5. A machine for applying end closures to paper vessels, having, in combination, a support for the vessel, a capping punch to force a closing cap into the interior of the vessel, a sealing punch mounted concentric with the cappin punch to fold over the projecting edge 0 the cap upon the outside of the vessel, and pin and slot connections between the two punches to permit a longitudinal and rotary movement of the sealing punch with relation to the capping punch.

6. A machine for applying end closures to paper vessels, having, in combination, a support for the vessel, a capping punch to'force a closing cap into the interior of the vessel, and a sealing punch mounted to move with the happing punch while the cap is being forced into the vessel and having a further independent longitudinal movement and bemg constructed to engage the edge of the cap pro ecting outwardly over the end of the vessel and fold said projecting edge downwardly upon the outside of the vessel.

7. A machine for applying end closures to paper vessels, having in combination, a support for the vessel, a sealing punch, constructed to engage the edge of a cap pro ecting outwardly over the end of the vessel and fold said projecting edge downwardly upon the. outside of the vessel, and means for holding the central portion of the cap in position. during the operation of the sealing punch.

, 8. A machine for applying end closures to paper vessels, having, -1n combination, a support for the vessel, a longitudinally movable and rotatable sealing punch constructed to engage the edge of a cap projectlng outwardly over the end of the,vessel and fold said projecting edge downwardly upon the outside of the vessel and means for holding the central portion of the cap in position during'the operation of the sealing punch.

9. A machine for applying end closures to paper vessels, having, in combination, a support for the vessel, a reciprocatingcapping punch to force a closing cap into. the interior of the vessel, a sealing punch mounted on' the capping punch so as to move therewith, a, handle for operating the sealing punch independently of the capping punch and connections between thejt-wo punches to impart a longitudinal and rotary movement tothe capping punch when operated to fold over the projecting edge of the cap upon the outside of the vessel. 10. A machine for applying end closures to paper vessels, having, in combination, a-

holder for the vessel, a capping punch mounted in alinement with the holder and movable to force a closing cap into the in terior of the vessel, a gage, to position the cap and a sealing punch mounted concentric With the capping punch and movable to fold over the projectmgiedge of the cap upon the outside of the vessel.

LIONEL NORMAN. EDWARD C. BATES.

Witnesses:

LIONEL AUBREY, NORMAN, NELLIE F. AHERN. 

